Microbes Infection and Immunity (MEDS2004)

In latent viral infections, reactivation leads to new infectious virus with/without disease. why is this?

Select the response that correctly fills in the gaps of the following sentence.

 ____(i)____ carriage of Staphylococcus aureus is associated with ____(ii)____ risk for development of ____(iii)____ infections. 

Group of answer choices

(i) Persistent; (ii) increased; (iii) endogenous

(i) Resistant; (ii) increased; (iii) endogenous

(i) Non-; (ii) decreased; (iii) nosocomial

(i) Persistent; (ii) decreased; (iii) nosocomial

(i) Resistant; (ii) increased; (iii) exogenous

(i) Persistent; (ii) increased; (iii) exogenous

Antimicrobial resistance is a major problem for treating infections caused by Staphylococcus aureus and other microorganisms. A preferred means of managing infections in healthcare settings includes;

Group of answer choices

maintaining general cleanliness, practicing good hygiene, and aseptic management of lesions

conducting antimicrobial susceptibility testing on all bacteria isolated from infections

waiting for the patients own immune system to eliminate the pathogen

using multiple different antimicrobials at high concentrations until the infection is resolved

Phospholipases are enzymes that do which of the following?

Group of answer choices

promote pathogen spread through the connective tissue

degrade antibodies

degrade cell membranes to allow pathogens to escape phagosomes

degrade nucleic acid to promote the spread of the pathogen

S. aureus produces a virulence factor called protein A.

Protein A binds to the Fc portion of antibodies. This can be beneficial for the bacteria because: 

Group of answer choices

It can prevent opsonisation of the bacteria and activation of the classical complement pathway

It can prevent activations of naive B cells

It can prevent opsonisation of the bacteria and activation of the alternative pathway

It inhibits the binding of the antibody to the bacteria